Door closer and check.



No. 873,433- v PATENTED DEC. 10, 1907. W. K. HENRY.

DOOR CLOSER AND CHECK.

APPLICATION FILED JULY 30., 1907.-

2 SHEETS-SHEET 1.

(in wanton 2 SHEETS-SHEET 2.

PATENTED DEC. 10, 1907.

W. K. HENRY.

DOOR CLOSER AND CHECK.

APPLICATION FILED JULY 3t 1907.

, U ITED STATES PATENT OFFICE.

WILLIAM K. HEN-RY, OF NEW BRITAIrL-CONNECTI CUT, .rssIoNoR TO P. a F.OORBIN, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF. CONNECTICUT.

DOOR CLOSER AND CHECK.

Specification of Letters Patent.

' Patented Dec. 10, 1907.

To all whom it may concern:

Be it known that I, WILLIAM K. HENRY, a citizen of the United States,residing at New Britain, county of Hartford, State of Connecticut, haveinvented certain new and useful Improvements in Door Closers and Checks,of which the following is a full, clear,

and exact description.

My invention relates to closers and checks for doors, andmoreparticularly such as are the spring in one direction only and alsodoes away with the tendency to clamp the spring in one place.

In the drawings; Figure l is a longitudinal,

vertical sectional view of a door Closer-and check, embodying theimprovements of my invention; Fig. 2 1s a view of the s mdle and packinggland, the lower half of t e spindle and gland being in section; Fig. 3is a frag- Y mcntary cross section on line XX of Fig.

5; Fig. 4 is a detail plan view of the, lower half of the spindle; Fig.5 isa plan view of the entire mechanism with the top plate and coverremoved; Fig. 6 is a fragmentary plan view of the spring-adjustingdevice; Flg. 7 is a detail view, in elevation, of the saddle.

' With the exception-of the improvements hereinafter to be described,the construction and operation of this device is the same as thatdisclosed in my former patent No. 833,387, and, therefore, itisnecessary only to describe briefly the general structure, in which 1represents the casing having the two separate chambers 2 and 3.

4 is the spindle gland.

5 is the lower part of the spindle, rotatably mounted in the gland .4and operatively connected to the piston 6, in the chamber 3.

7 is a valve controlling the by-pass 8 of the piston chamber.

9 is the upper part of the spindle, removably mounted in the lower part5. and adapted to rotate the same.

10 is a shoe having a recess and adapted to be secured in the lower edgeof the door, to afford a seat therefor upon the upper part 9 of thespindle.

11 is a cover for the casing.

My invention relatesmore particularl to the construction set forthbelow, whic is shown in the preferred form, but minor details may bechanged without departing from the scope of my invention.

12 is an 0 -set portion of the upper spindle 9.

the guides 14 in the upper chamber 2.

1515 are cam surfaces on the slide 13. .1616 are rollers mounted in theoff-set 12 and engage the cams 15 when the spindle is rotated. I

17 is a saddle comprising curved top and joined by end members 17 and 17(Fig. 7). 17 17 are perforated ears projecting from the end member 17 1313 are lugs projecting from the center of the slide 13 and carrying pins13 13 adapted to engage in the perforated ears 17 to form a detachablebearing for thesaddle 17. i I

1 8 is a post extended upward from the bottom of the chamber 2.

19 is a flanged cap rotatably mounted on said post 18, and is providedwith a vertical groove 20. I

21 is a coil sprin. one end of which engages in the groove 20 o the cap19 and, the other end is bent to engage the end members 17 of the saddle17 when the spring is under tension. The flanged top of the cap 19 iscut to form a ratchet 22.

23 is a pawl carried by the cover 11, adapted to engage the ratchet 22.

24 is a band encircling the spring 21 to prevent excessive expansion.

25 is a sheet metal topI placed" over the entire device, preventing t edirt from entering 13 is aslide mounted to operate betweenbottom membersor plates 17' 17 (Fig. 15)

the same and presentlng a flat surface at the floor level.

The operation is as follows: When the spindle 9 is rotated in eitherdirection by the o ening of the door, one of.the rollers 16 in t eoffset portion of the s indle enga es one of the cam surfaces 15 of t eslide 13, t ereby moving the slide and windin the sprin 21 by means ofthe saddle 17. TVhen the oor is released, the reaction of the springreturns it to its closed position and the piston prevents a too rapidmovement thereof.

.lt is often desirable, as well as necessary, to adjust the tension ofthe spring, and this is accomplished by-rei'noving thetop 25 andadjusting the ratchet 22, which, being connected. to the spring 21,either adds to or decreases the tension thereol".

By the strmzture set forth above, the adjusting parts are always readilyaccessible. As the cut-away portion 26 of the saddle enables the curvedtop and bottom plates 17 thereol to straddle the spring, as shown inFig. 5, the strain is evenly distributed around the post 18, and whenthe spring is under tension, any tendency to bind is prevented, the

' saddle being attached. to the center ol the slide, and theslidehavinga long bearing,

even movement is given to the saddle as it pulls from the center of, theslide. With either right onlelthand movement of the spindle the springis wound in the same direction, and the spindle in its full movementshould not Wind the spring more than onequarter of a turn when in properadjustment.

What I claim is: I

1. In a door closer, the combination of a casing, a spindle, a slidemounted in the easing and operated by the spindle, a coil spring, asaddle connected to the spring and pivoted directly on the slide, and arotatable member engaging the spring and adapted to be secured indi'llerent positions to ad ust the tension of the spring.

2. In a door closer, the combination with a casin of an adjustable coilspring, a spindle, a s 'de operated by the spindle, a saddle detachablypivoted to one end of the slide and connecting the slide to the coilspring, and a rotatable member engaging the spring and adapted to besecured in different positions to adjust the tension of the spring.

' 3. In a door closer, the combination with a casing of a coil spring, aspindle, a slide 0 erated by the spindle, a curved hollow sadd leconnectin 'the coil spring to the slide and passing above and below thecoils of the spring, and a rotatable member engaging the spring andadapted to be secured in different positions to adjust the tension ofthe spring.

4. In a door closer, the combination with a casing of a coil spring, aspindle, a slide operated by the spindle, a curved saddle l'rameconnected to the coil spring and detachably pivoted to the center of theslide, the coils of the spring passing between the plates ol. the saddleframe, and a rotatable member engaging the spring and adapted to besecured in (li'll'erent positions to adjust the tension of the spring.

5. In a door closer, the combination with a casing of an adjustable coilspring, a rotatable member engaging the spring and adapted. to besecured in dill'erent positions to adjust the tension of the spring, aslide, a spindle operating the slide, and a saddle pivoted to the slidecomprising curved plates passing above and below the coils of thespring, said saddle detachably connected to the spring and held inconnection therewith by the tension thereof.

6'. In a door closer, the combination with a casing, of a coil spring, aslide, a spindle to operate the slide, and a saddle pivoted to the slidedetachably engaged by one end of the spring and held in engagement bythe tension of the spring.

WILLIAM K. HENRY. Witnesses:

' WM. '1. COLLINS,

L. B. MALLoRY.

